<template>
  <el-main class="image-main" v-loading="loading">
    <div class="top p-3">
      <!-- <div v-for="(item,index) in list" :key="index">{{ item.url }}</div> -->
      <el-row :gutter="20">
        <el-col :span="6" :offset="0" v-for="(item, index) in list" :key="index">
          <el-card shadow="hover" class="relative mb-3" :body-style="{ 'padding': 0 }"
            :class="{ 'border-blur-500': item.checked }">
            <el-image :src="item.url" fit="cover" class="w-full h-[150px]" style="width: 100%;"
              :preview-src-list="[item.url]" :initial-index="0">
            </el-image>
            <div class="image-title">{{ item.name }}</div>
            <div class="flex items-center justify-center p-2">

              <el-checkbox v-if="openChoose" v-model="item.checked" @change="handleChooseChange(item)" />

              <el-button type="primary" size="small" text @click="handleEdit(item)">重命名</el-button>

              <el-popconfirm title="是否要删除该图片？" confirmButtonText="确认" cancelButtonText="取消"
                @confirm="handleDelete(item.id)">
                <template #reference>
                  <el-button class="!m-0" type="primary" size="small" text>删除</el-button>
                </template>
              </el-popconfirm>
            </div>
          </el-card>
        </el-col>
      </el-row>
    </div>
    <div class="bottom">
      <el-pagination background layout="prev,pager, next" :total="total" :current-page="currentPage" :page-size="limit"
        @current-change="getData" />
    </div>
  </el-main>

  <el-drawer v-model="drawer" title="上传图片">
    <UploadFile :data="{ image_class_id }" @success="handleUploadSuccess" />
  </el-drawer>
</template>
<script setup>
import { computed, ref } from "vue"
import {
  getImageList,
  updateImage,
  deleteImage
} from "@/api/image"
import {
  showPrompt,
  toast
} from "@/composables/util"
import UploadFile from "./UploadFile.vue";

// 上传图片
const drawer = ref(false)
const openUploadFile = () => drawer.value = true

// 分页
const currentPage = ref(1)
const total = ref(0)
const limit = ref(10)
const list = ref([])
const loading = ref(false)
const image_class_id = ref(0)

// 获取数据
function getData(p = null) {
  if (typeof p == "number") {
    currentPage.value = p
  }

  loading.value = true
  getImageList(image_class_id.value, currentPage.value)
    .then(res => {
      total.value = res.totalCount
      list.value = res.list.map(o => {
        o.checked = false
        return o
      })
    })
    .finally(() => {
      loading.value = false
    })
}

// 根据分类ID重新加载图片列表
const loadData = (id) => {
  currentPage.value = 1
  image_class_id.value = id
  getData()
}

// 重命名
const handleEdit = (item) => {
  showPrompt("重命名", item.name)
    .then(({ value }) => {
      loading.value = true
      updateImage(item.id, value)
        .then(res => {
          toast("修改成功")
          getData()
        })
        .finally(() => {
          loading.value = false
        })
    })
}

// 删除图片
const handleDelete = (id) => {
  loading.value = true
  deleteImage([id]).then(res => {
    toast("删除成功")
    getData()
  })
    .finally(() => {
      loading.value = false
    })
}

// 上传成功
const handleUploadSuccess = () => getDate(1)
// 图库选择显示，图库页面不显示
const props = defineProps({
  openChoose: {
    type: Boolean,
    default: false
  },
  limit:{
    type:Number,
    default:1
  }
})

// 判断：最多选中一张图片
const emit = defineEmits(["choose"])
const checkedImage = computed(() => list.value.filter(o => o.checked))
const handleChooseChange = (item) => {
  if (item.checked && checkedImage.value.length > props.limit) {
    item.checked = false
    return toast(`最多只能选中${props.limit}张`, "error")
  }
  emit("choose", checkedImage.value)
}

defineExpose({
  loadData,
  openUploadFile
})

</script>
<style>
.image-main {
  position: relative;
}

.image-main .top {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  bottom: 50px;
  overflow-y: auto;
}

.image-main .bottom {
  position: absolute;
  bottom: 0;
  height: 50px;
  left: 0;
  right: 0;
  @apply flex items-center justify-center;
}

.image-title {
  position: absolute;
  top: 122px;
  left: -1px;
  right: -1px;
  @apply text-sm truncate text-gray-100 bg-opacity-50 bg-gray-800 px-2 py-1;
}
</style>